Alena Dolgireva (she/her) got her degree in Education in Russia and then kept studying maths and the difference between Russian and American programs. She was teaching during the CMC Summer Mathcamp in 2023. And also she runs her lectures for school kids about women in STEM. Her favorite teaching moment is when students start to find math interesting, beautiful and fun. In her spare time, Alena travels, climbs, and watches history channels on YouTube. Fun fact: she has a TikTok channel (17k followers) about math.

Alper Tezcan (he/him) is a first-year student at École Polytechnique in France, studying Mathematics and Physics. Physics is his passion — he got involved in research and competitive physics. He also likes to discover and talk about different topics, concepts, or stories. He finds every class environment impressive and inspiring, starting from his very first teaching/mentoring experience with high school students preparing for international physics olympiads to his current classes at CMC. In his spare time, he sometimes plays video games and table tennis. He enjoys cooking, playing guitar, and fencing.

Avery Wang (he/him) is a junior at Washington University in St. Louis, where studies mathematics with a minor in chemistry. In high school, he attended the Commonwealth School in Boston, MA, where he was a co-captain of the Math Team during his senior year and competed in many different math competitions, including the AMC (American Mathematics Competition) and HMMT (Harvard-MIT Math Tournament). He has always loved working with kids, and has worked with CMC since 2021. In his free time, he enjoys swimming, playing piano, and taking long naps.

Bengusu Nar (she/her) is a second-year student at Bocconi University (in Italy), studying Data Science and Economics. During high school, she was a part of her school's mathematics community and mentored younger students as well. She attended Canada/USA Mathcamp twice and run projects focusing on intersections of mathematics and social sciences. Bengusu is originally from Turkey and she loves debating, going to the gym, and baking in her free time. Fun fact: she has a food blog where she shares interesting dishes she tries.

Ben Fayyazuddin Ljungberg (he/him) grew up in Sweden and moved to the US to study math at Cornell University. He went on to get a PhD in mathematics from Stanford University in 2019. He currently works as a software engineer at Dana-Farber Cancer Institute in Boston. Fun fact: Ben has been trying to learn Chinese since the pandemic started, but his progress is slow.

Cathy Stanton (she/her) is a first-year student at Harvard University, thinking of studying math and computer science. She started tutoring students from her K-12 school district in math when the pandemic disrupted in-person learning. She loves being able to help students see the connections between math and their other interests. Cathy is very involved with the arts: She plays clarinet in the Harvard-Radcliffe Orchestra and is working on an archival project for the Boston Symphony Orchestra. In her free time, Cathy enjoys running, coding, and baking.

Cody Uman (they/them) is an undergraduate mathematics student at Yale University. They fell in love with math in 6th grade, when they had an amazing teacher who showed them new ways to look at math. They joined Cambridge Math Circle to try to have the same effect on other students. Outside of academics, Cody enjoys modular origami, ice skating, musical theater, and playing trombone and tuba.

Constance Kraay (she/her)  is a PhD student in Biophysics at Harvard, and she has bachelor's and master's degrees in Chemistry from Harvard.  She has enjoyed teaching math and music in several different contexts, and especially with the Cambridge Math Circle!

Crisel Suarez (she/her) is a Physics PhD candidate at Vanderbilt University and a Smithsonian Astrophysical Observatory (SAO) Predoctoral Fellow. She is currently studying the physics behind large energy events in the Sun called solar flares. She earned a Master of Science in Physics from Fisk University in 2019 and a Bachelor of Science in Mathematics (major) and Physics (minor) from St. Edward's University in Austin, TX, in 2017. Crisel is originally from Mexico City, Mexico. When not doing research, she likes solving puzzles and spending time with her dogs and cat.

Eleni Persinger (she/her) is a sophomore at Yale studying mathematics. Originally from Michigan, he loves teaching, tutoring, and learning more about math. She is also currently president of Dimensions, Yale's Women and Gender Minorities in Math club. Eleni went to Canada/USA Mathcamp '20, '21, and '22, and was a JC for Mathcamp in 2023.  She loves visualizing math, whether it's thinking about geometry in higher dimensions, doughnuts and coffee cups, or group structures. In her free time, Eleni loves to play the violin, fold origami, crochet, collect coins, do woodworking, bake, and play golf. In college, she's loved trying new things, such as learning to ice skate. Eleni has two cats that always walk in front of her camera during Zoom calls. 

Elizabeth Chang-Davidson (she/her) has a long history of being interested in math and teaching math. In high school, she joined the math club, attended summer math camps, and volunteered at the local middle school math club. In college, she fell into double majoring in math by finding the idea of not taking math classes every semester inconceivable. During her Ph.D., she ran the Western PA Math Circle and ARML Team for several years. When she returned to Cambridge to be a postdoc at Northeastern, she started volunteering with CMC, and has enjoyed teaching fun math here ever since. Fun fact: if you meet another Chang-Davidson, that’s one of her three younger brothers!

Grace Zhang (she/her) is a second-year student at MIT, where she is studying mathematics and computer science. She has taught with Cambridge Math Circle since 2020 and loves interacting with the students and doing cool math! Originally from Colorado, Grace enjoys being outdoors, especially with her dog (!), and also enjoys playing violin, doodling, and trying new food in her free time. Fun fact: she absolutely adores Snoopy!

Iandra Ramos (she/her) is a junior at Harvard College concentrating in Psychology. She attended a math and science high school where she competed in an annual Math Olympiad twice and spent lots of time after school tutoring fellow students in Geometry and Calculus. During her free time, the New York native loves to play the piano, write her own music, journal, read (preferably outside when it's sunny), travel, and try out the latest coffee shops in Harvard Square.

Josh Zhang (he/him) is a freshman at Harvard. He plans on studying Applied Mathematics in Computer Science and Government. He loves playing the saxophone in marching and jazz band. Josh is originally from Boston, so he is a big fan of the Celtics and the other New England sports teams as well!

Katie Ho (she/her) is a sophomore at Harvard studying biomedical engineering and statistics. She loves working with children and math, so CMC is the perfect fit! When she’s not teaching, you may find her baking, crocheting, or perfecting her dad-jokes!

Khanh Pham (he/him) is currently a first year physics graduate student at Harvard. He received undergraduate degrees in physics and applied math at UC Berkeley. Khanh enjoys swimming, reading, and cooking. 

Laura Pierson (she/her) is a math master's student at the University of Waterloo in Canada, where she counts ways to color things. She studied math and math teaching at Harvard and also teaches at AoPS and various other math enrichment programs. In her free time she currently enjoys doing puzzle hunts, playing board games, folding modular origami, running, weightlifting, walking up the 20 flights of stairs to her apartment, and drinking lots of coffee.

Lauren Wheelock (she/her) has a PhD from MIT in operations research and a BS from Yale in math, and worked as a machine learning scientist in biotech before focusing more on teaching. In high school, she was a three-time mathcamper and participated in AMC, AIME, and USAMTS competitions. She has tutored and taught math and data science to students from elementary school through the MBA and PhD levels, and is excited to share her passion for the subject with students in Cambridge! She lives with her wife and her son, and fun fuct - she has spent over 80 days in silence on meditation retreats.

Leo Kargin (he/him) is a sophomore at Proof School. He went to Mathcamp 2022 and his favorite field of mathematics is analysis. He enjoys balloon art, Russian poetry, and swimming.

Liliana Price (she/her) is a current upperclassmen student at Harvard University. Prior to coming to college, she founded the branch of the National Math Society at her high school back home, and acted as president of her National Honors and Science Societies! She has been a mentor and instructor of students K-12 in several subjects including mathematics, English, government, pre-law, and the arts! She is currently studying in the fields of social sciences, statistics, and the performing arts. Liliana is originally from Louisville, Kentucky and she loves to travel, dance, and read in her free time. Fun fact: she was a cirque aerialist for a few years prior to coming to Harvard!

Luke Jackson (he/him) is a junior at Harvard studying math. He's also interested in neuroscience and philosophy, but math became his favorite subject once he entered college because he was introduced to proofs. Outside of school stuff, he enjoys playing saxophone and snare in the band, being really good at video games, and telling bad jokes.

Michelle Liu (she/her) is a student at Brown University, class of 2025, where she studies applied mathematics and computer science. She loves teaching and has taught at multiple math summer camps and programs since 8th grade. Michelle has also been to Canada/USA Mathcamp three times. In her free time, she loves rock climbing, board games, and cooking!

Mira Bernstein (she/her) received her PhD in math from Harvard University, taught at Wellesley College for ten years, and then left academia to pursue her dual interests in data science and math enrichment education. She runs Canada/USA Mathcamp, an international summer program for mathematically talented high-school students, and helped found Proof School, a school for kids who love math in San Francisco. Her work at a summer math program for underserved middle-school students was featured in the New York Times. Mira’s experience with older students has convinced her of the importance of creating STEM pathways for underserved students, starting in elementary school. She lives in Cambridge and is excited for this opportunity to contribute to her city’s community.

MyeongSeo Kim (they/them) studied Mathematics with a secondary in Computer Science at Harvard University. Motivated by their passion for mathematics found at a young age, MyeongSeo studied math and sciences at Seoul Science High School in Korea. Upon entering Harvard, they explored the intersection of math, computer science, and physics. Their research project in computational physics, funded by the Harvard College Research Program, is on the way to publication. Outside of academics, MyeongSeo loves wallowing in science-fiction worlds in video games, novels, and films. Fun fact: At age 15, they slipped, fell, and made a semi-permanent dent on their right butt.

Nataliya Yufa (she/her) received her bachelor’s degrees from MIT in mathematics and physics, followed by a PhD in physics from the University of Chicago. It was in Chicago that she started teaching, working with people of all ages -- school children, undergraduates, and adults. She served three years as a teacher/director of STEM afterschool programs within the Chicago Public Schools, and one year in Houston. These experiences inspired Nataliya to become a full-time math educator, following work as a math education researcher. Since then, Nataliya has taught math at several Boston-area schools, including co-teaching the CSUS math club. She has an M.Ed. from Lesley University in Math Education.

Penny Orwant (she/her) is a high school senior at Commonwealth School in Back Bay, Boston. She plans on studying math and computer science, but also has interests in English, foreign language, and science. She originally grew to enjoy math through extracurricular classes, and is thrilled to now teach interesting math outside of the typical curriculum. Her favorite teaching moments are when students discover a new way of looking at a problem and arrive at a unique conclusion. Other than teaching and academics, Penny loves painting, drawing, watching mediocre television, and playing piano and flute.

Rachel Green (she/her) is from Long Island, NY and is currently studying in Ithaca, NY, at the Industrial and Labor Relations School of Cornell University. She loves teaching math and has loved working with kids since she started teaching her brothers at a young age. Math is her favorite subject, especially derivatives because she finds it challenging but still fun! In her free time, she loves to paint, bake, and volunteers for the Cornell ILR ambassador program. Fun fact: her favorite vacation spot is Lake Placid, NY!

Ruth Steinhouse (she/her) is from Evanston, IL. Currently, she is a junior at Cornell University studying Global Public Health Sciences with minors in Inequality Studies and Healthcare Policy. Growing up math was always her favorite subject in school. She loves teaching for CMC to help other students develop their passion for mathematics. She also volunteered as a peer math tutor in high school. In her free time you can find her doing global nutrition research with the Mehta Research Group in Cornell College of Human Ecology, knitting, baking, watching reality tv or working with youth in the Tompkins County through Cornell Y.O.U.R.S mentorship program!

Sanjana Kayath (she/they) studies math and computer science at MIT, in the class of 2026. She loves teaching, especially math! In her free time, she likes to read, crochet, and take pictures of plants. Fun fact: Sanjana loves to crochet hyperbolic manifolds!

Sasha Brownsberger (he/him) is a graduate student at Harvard University, where he studies astrophysics and cosmology.  Sasha has always been an enthusiastic teacher, from elementary arithmetic to graduate cosmology.  He loves science and math, and hopes to make both more accessible to everyone (children and adults alike).  Sasha’s astrophysics research focuses on the ‘dark sector’ of cosmology, working to use both instrumentation and data science to understand the detailed evolution of our Universe.  When focusing on more Earthly pursuits, Sasha is a passionate runner and climber, and loves to play Magic the Gathering and Dungeons and Dragons.

Sophia Benjamin (she/her) is a teacher for CMC. She studies mathematics at MIT (class of 2026). She is passionate about teaching math to kids; she has taught at Cambridge Math Circle since spring 2023, and has also taught for several other math outreach initiatives. She enjoys walking/running/climbing/frolicking in nature, making bad puns, and spinning things that are on fire. Fun fact: her favorite dinosaur is the Parasaurolophus.

Susan Takang (she/her) is a third-year student at Harvard University where she is doing a double concentration in Human Developmental and Regenerative Biology & History of Science. Math has a special place in Susan's heart as it was her favorite subject to study in high school! Susan enjoys playing clarinet, lifting weights, and listening to R&B music in her free time. Susan is originally from Brockton, MA.